Naruto: A Billion Talents from the Start

A dying old man jolts upright in bed, and a septuagenarian becomes a ninja!

"What?! Dad, are you crazy? You're seventy! Why are you taking the Chunin Ninja Exams?!"

"I'm not crazy. One day, your dad's going to dance and boogie with your Grandpa Madara!"

Uchiha Hikari, an Uchiha genin who lived from the Warring States period to the Fourth Hokage's era, suddenly awakened the Sunset Years System on his seventieth birthday, and his talent increased a billionfold.

S-rank ninjutsu, Flying Thunder God: one breath, two breaths, mastered!

Konoha's secret technique, Thousand Years of Death: Sorry, I can be even more ruthless!

S-rank ninjutsu, Sexy Jutsu: Sorry, I think I can surpass the master!

Kakashi: "Grandpa, let me help you cross the street."

Hikari: "All right. I may fake accidents and throw my weight around because I'm old, but I know I'm a good old man!"

This is probably a story about proving through sheer strength that your grandpa will always be your grandpa...

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.